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在jsp网页上实现月历
jsp、月历
<%@ page contenttype="text/html; charset=gb2312" language="java" import="java.util.*,java.text.*" %>
<html>
<head>
<title>月历</title>
</head>
<body style="font-size:12px">
<%!
/*声明变量*/
string[] months = {"january", "february", "march", "april", "may", "june",
"july", "august", "september", "october", "november", "december"};
string[] months_cn = {"一月", "二月", "三月", "四月", "五月", "六月",
"七月", "八月", "九月", "十月", "十一月", "十二月"};
public final static int dom[] = {
31, 28, 31, 30,
31, 30, 31, 31,
30, 31, 30, 31
};
%>
<%
/*处理事件*/
boolean yyok = false;
int yy = 0, mm = 0;
string yystring = request.getparameter("year");
if (yystring != null && yystring.length() >0) {
try {
yy=integer.parseint(yystring);
yyok=true;
}
catch (numberformatexception e) {
out.println("年份不可用");
}
calendar cal = calendar.getinstance();
if (!yyok)
yy = cal.get(calendar.year);
string mmstring = request.getparameter("month");
if (mmstring == null) {
mm = cal.get(calendar.month);
}
else {
for (int i = 0; i < months.length; i++)
if (months[i].equals(mmstring)) {
mm = i;
break;
}
}
}
%>
<form name="cal" method=post action="cal.jsp">
请选择月份:
<select name="month">
<%
/*初始化表单*/
for (int i = 0; i < months.length; i++) {
if (i == mm)
out.print("<option selected value=january>");
else
out.print("<option value="+months[i]+">");
out.print(months_cn[i]);
out.print("</option>");
}
%>
</select>
<br>请输入年份：
<input type="text" size="5" name="year" value="<%=yy%>">
<input type="submit" value="显示">
</form>
<%
int lead = 0;
%>
<table border="0" cellpadding="1" cellspacing="1" style="font-size:12px">
<tr height="20"><td colspan="7"><font color="#3399ff"><b><%= months[mm]%> <%= yy%></b></font></td></tr>
<% gregoriancalendar calendar = new gregoriancalendar(yy, mm ,1); %>
<tr><td><font color="#ff0000">sun</font></td><td>mon</td><td>tue</td><td>wed</td>
<td>thu</td><td>fri</td><td><font color="#ff0000">sat</font></td></tr>
<%
/*下面是显示月历的代码*/
lead = calendar.get(calendar.day_of_week)-1;
int dayinmonth = dom[mm];
if (calendar.isleapyear(calendar.get(calendar.year)) && mm == 1)
++dayinmonth;
out.print("<tr>");
for(int i = 0; i < lead; i++) {
out.print("<td> </td>");
}
for(int i = 1; i <= dayinmonth; i++) {
if ((i+lead) % 7 == 0 || (i+lead) % 7 == 1)
out.print("<td align=\"center\"><font color=\"#ff0000\">"+i+"</font></td>");
else
out.print("<td align=\"center\">"+i+"</td>");
if ((lead+i) % 7 == 0) {
out.print("</tr></tr>");
}
}
out.print("</tr>");
%>
</table>
</body>
</html>
